//
//  SSVisitorView.swift
//  weibooo
//
//  Created by  sulcan on 16/4/8.
//  Copyright © 2016年 苏烁. All rights reserved.
//

import UIKit
// 定义代理协议
protocol SSVisitorViewDelegate: NSObjectProtocol {
    // 定义代理方法
    func visitorViewDidClickRegisterButton()
    
    func visitorViewDidClickLoginButton()
}

class SSVisitorView: UIView {
    // 定义代理属性
    weak var delegate: SSVisitorViewDelegate?
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        // 设置背景颜色
        backgroundColor = UIColor(white: 237 / 255.0, alpha: 1)
        
        // 设置要展示的UI
        prepareUI()
        
        
        
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    /// 设置访客视图内容
    func setupVisitorViewInfo(imageName imageName: String, message: String) {
        // 设置转轮的图片
        iconView.image = UIImage(named: imageName)
        
        // 设置消息内容
        messageLabel.text = message
        
        // 隐藏小房子
        homeView.hidden = true
        
        // 隐藏遮盖
        coverView.hidden = true
        
        // 将View放到最底层
//        self.sendSubviewToBack(coverView)
        // 将View放到最顶层
//        self.bringSubviewToFront(coverView)

    }

    func startRotation() {
        // 使用核心动画
        let animation = CABasicAnimation(keyPath: "transform.rotation")
        animation.toValue = M_PI * 2
        animation.duration = 20
        animation.repeatCount = MAXFLOAT
        
        // 动画完成后不要移除动画
        animation.removedOnCompletion = false
        
        iconView.layer.addAnimation(animation, forKey: nil)
    }
    
    private func prepareUI() {
        // 添加控件
        addSubview(iconView)
        addSubview(coverView)
        addSubview(homeView)
        addSubview(messageLabel)
        addSubview(registerButton)
        addSubview(loginButton)
        
        // 禁用Autoresizing
        iconView.translatesAutoresizingMaskIntoConstraints = false
        coverView.translatesAutoresizingMaskIntoConstraints = false
        homeView.translatesAutoresizingMaskIntoConstraints = false
        messageLabel.translatesAutoresizingMaskIntoConstraints = false
        registerButton.translatesAutoresizingMaskIntoConstraints = false
        loginButton.translatesAutoresizingMaskIntoConstraints = false
        
        // 轮转
        addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        
        addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: -40))
        
        // 遮罩
        addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Top, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem:registerButton , attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
     
        // 房子
        addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: 0))
      
        // messageLabel
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        // 当参照的view为nil时，attribute必须设置为NSLayoutAttribute.NotAnAtrribute
        addConstraint(NSLayoutConstraint(item:messageLabel, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 250))
        
        // 注册按钮
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 100))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 35))
        
        // 登陆按钮
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Width, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Top, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Height, multiplier: 1, constant: 0))
        
    }
    
    // mark: - 懒加载
    /// 轮转
    private lazy var iconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    
    /// 遮盖
    private lazy var coverView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    
    /// 小房子
    private lazy var homeView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    
    /// 消息文字
    private lazy var messageLabel: UILabel = {
        let label = UILabel()
        // 设置
        label.text = "关注一些人!看看有神马惊喜!"
        label.font = UIFont.systemFontOfSize(18)
        label.textAlignment = NSTextAlignment.Center
        label.numberOfLines = 0
        return label
    }()
    
    // 注册按钮
    private lazy var registerButton: UIButton = {
        let button = UIButton()
        // 标题
        button.setTitle("注册", forState: UIControlState.Normal)
        // 图片
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        button.setTitleColor(UIColor.orangeColor(), forState: UIControlState.Normal)
        
        button.addTarget(self, action: Selector("registerButtonDidClick"), forControlEvents: UIControlEvents.TouchUpInside)
        
        return button
    }()

    @objc private func registerButtonDidClick() {
        delegate?.visitorViewDidClickRegisterButton()
    }
    
    
    // 登陆按钮
    private lazy var loginButton: UIButton = {
        let button = UIButton()
        
        button.setTitle("登陆", forState: UIControlState.Normal)
        
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        
        button.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)

        button.addTarget(self, action: Selector("loginButtonDidClick"), forControlEvents: UIControlEvents.TouchUpInside)
        
        return button
    }()
    
    // 按钮点击事件回调
    @objc private func loginButtonDidClick() {
        delegate?.visitorViewDidClickLoginButton()
    }
}
